Decentralizing voting application in Ethereum blockchain

I looking for decentralizing voting application using Ethereum the apps contain the entered name of the candidate, voter to vote for a candidate the voter can only vote ones no more should be given technique to identifier the voter before the vote. How you provide anonymous voting in the application. For application put better design how do you want to design the user interface, such as (candidate, picture and so on please chat with me to discuss more thanks